How long should I let a coat of primer dry before I paint over it?

As soon as it's dry, which depends on the ambient conditions (temperature, humidity, etc.). Something like a water-based Kilz primer dries and is ready to paint in less than an hour under most conditions (it says to wait 1 hour before applying paint over it on the can).





One thing you can do is apply the primer to what you're painting, and then apply it kind of thick to a test piece of wood or whatever. When the test piece is dry to the touch, you know the area you're painting is dry. And, you can touch the test piece to check for dryness without messing up your project with finger marks (in case you touch it and it's not dry yet).How long should I let a coat of primer dry before I paint over it?
Check the lable on the can of primer. It will tell you how long to wait.





Things that may impact the time are temperature (too low and it won't dry as fast) or the humidity (too high and it won't dry as fast).How long should I let a coat of primer dry before I paint over it?
as long as the temp is above freezing, 24 hours is more then enough i do a lot of painting as a maintenance man and that's what i do,and have never had ant problems..
read the label where it says dry time. some primers can be painted over after 2 hours, some 4 hours, some longer
What type of primer are you using?


Oil? Acrylic?


Also what are you painting?


Depending on the surface for best results you would need to use oil based on metal and water based on wood.


Water based you could paint within an hour if it is not too damp out and oil I would wait 24hrs





Hope this helps...